Tube-rest for syringes



(No Model.)

B. F; SUTTON. TUBE REST FOR SYRINGES-' No. 402,285. Patented Apr.30.,1889.

lllili llllllglll l ll i N. FETERi Pholn-Lflhflgnpher. Washinginn, D. C.

UNITED STATES PATENT OFFICE.

BENJAMIN F. sUTToN, or BROOKLYN, NEW YORK.

TUBE-REST FOR SYRINGES.

SPECIFICATION forming part Of Letters Patent N0. 402,285, dated April30, 1889.

' Application filed March 13, 1889- Qerial No. 303,179- (No model.)

To all whom it may concern: l

Be it known that I, BENJAMIN F. SUTTON, of

Brooklyn, in the county of Kings and State of New York, have invented acertain new and useful Improvement in Tube-Rests for Syringes, of whichthe following is a specification.

My improvement relates to so-called siphon-syringes, in which one endportion of a syringe-tube is inserted in a j at or receptacle for liquidoccupying an elevated position, and the liquid then conveyed downwardlythrough the syringe-tube.

I will describe my improvement in detail, and then point out the novelfeatures in the claim.

In the accompanying drawings, Figure 1 illustrates a jar or receptaclefor liquid and a syringe of the siphon type embodying my improvementacting in conjunction therewith. Fig. 2 is a vertical section of thesaid jar or receptacle", a portion of the syringetube, anda rest for thelatter.

Similar letters of reference designate corresponding parts in both thefigures.

A designates a jar or receptacle.

B designates a syringe-tube, provided near one end with anoutlet-nozzle, B, and near its other end with an inlet-port, B inlet endof the tube the same is provided with a ring, a, by which it may besuspended in order to drain the tuberv Arranged upon the tube is aclasp, a, by which the flow of liquid through the tube may be suspendedor its force modified.

C designates a rest for the tube. This rest is tubular and U-shapd. Thesyringe-tube B is passed through it. The internal diameter of, the restis such that while the tube may be readily drawn through the rest by Atthe.

hand the tube will be retained in any position into which it may beadjusted by means of the frictional contact of the tube with the rest.Being made of rubber, the frictional resistance offered by the rest tothe tube is increased without impairing its property of elasticity. Therest is made of such a thickness of rubber, however, that it may be hungupon the edge of the jar or receptacle A so that the short leg of thesiphon will depend within the jar or receptacle, while its long leg mayextend downwardly to any desired distance.

I have shown the ends of the rest as provided with annular rims or rings1), formed integral therewith. The mouth or neck of the jar orreceptacle A is formed with an internal flange or rim, 0. the rest G iswithin the jar or receptacle the rim 1) thereon will engage the internalrim, 0, of the jar, and will thereby assist in preventing the accidentalremoval of the rest from the jar. I do not consider the rims b, however,as wholly essential, and at least one of them may be omitted.

What ,I claim as my invention, and desire to secure by Letters Patent,is-

In a siphon-syringe, the combination, with a'syringe-tube, of a resttherefor adapted to support the same upon a vessel, said rest being madeof india-rubber and in the form of Whichever end of a U-shaped tubeofsuch internal diameter that the syringe-tube may be drawn through it,but which will normally maintain the syringe-tube in a position intowhich it may be adjusted by friction, substantially as specified.

